Triple authentication: mobile hardware, mobile user, and user account

ABSTRACT

Enhanced network security is provided by requiring three types of information to be authenticated: user information identifying a user, security information that the user has entered into a network data communication device, and device information identifying the network data communication device. Systems and databases are described for processing and authenticating this information.

BACKGROUND Description of Related Art

This disclosure relates to wireless mobile communication devices,network security systems, and network applications.

Authentication of requests for services that are sent over networkcommunication systems continue to be of growing importance. This is duein part to increases in the importance of these systems and tocorresponding increases in the sophistication of those that seekunauthorized access to them.

The challenges become even greater when these services are provided byenterprise applications that are intended to be accessible only tocurrent members of the enterprise. These members now seek access tothese services from wireless mobile communication devices that utilizepublicly accessible network communication systems, such as cellularcommunication networks and the Internet. This enhances the securityrisks. These wireless mobile communication devices can also be lost orstolen, enhancing the security risks even further.

In addition to growing concerns over the adequacy of network security,users are being burdened with having to constantly provide securityinformation in connection with each network application they wish toaccess, often having to provide increasingly complicated passwords andother security information every time particular applications are used.Network application developers are also being burdened with thecorresponding need to incorporate increasingly-sophisticated securitycode into their network applications. Users of older networkapplications are also having to abandon them, even though they areproviding valuable services, because they fail to provide an adequatelevel of network security.

BRIEF DESCRIPTION OF DRAWINGS

The drawings are of illustrative embodiments. They do not illustrate allembodiments. Other embodiments may be used in addition or instead.Details that may be apparent or unnecessary may be omitted to save spaceor for more effective illustration. Some embodiments may be practicedwith additional components or steps and/or without all of the componentsor steps that are illustrated. When the same numeral appears indifferent drawings, it refers to the same or like components or steps.

FIG. 1 illustrates an example of various network applications, awireless mobile communication device that communicates with the variousnetwork applications, a network authentication system that authenticatesthe wireless mobile communication device, and related network securitysystems.

FIG. 2 illustrates an example of a process that is implemented by thewireless mobile communication device illustrated in FIG. 1.

FIG. 3 illustrates an example of a process that is implemented by thenetwork authentication system illustrated in FIG. 1.

FIG. 4 illustrates the various network applications, the wireless mobilecommunication device that communicates with the various networkapplications, and the related network security systems illustrated inFIG. 1, together with an example of a network authentication system thatauthenticates communications from the wireless mobile communicationdevice to the network applications.

FIG. 5 illustrates a process that is implemented by the networkauthentication system illustrated in FIG. 4 to validate each request forservice that is made by a client application in the wireless mobilecommunication device illustrated in FIG. 4.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

Enhanced network security is provided by requiring three types ofinformation to be authenticated: user information identifying a user,security information that the user has entered into a network datacommunication device, and device information identifying the networkdata communication device. This enhanced security is particularly usefulin connection with wireless mobile communication devices that can belost or stolen.

Illustrative embodiments are now described. Other embodiments may beused in addition or instead. Details that may be apparent or unnecessarymay be omitted to save space or for a more effective presentation. Someembodiments may be practiced with additional components or steps and/orwithout all of the components or steps that are described.

FIG. 1 illustrates an example of various network applications, awireless mobile communication device 143 that communicates with thevarious network applications, a network authentication system 121 thatauthenticates the wireless mobile device, and related network securitysystems.

FIG. 2 illustrates an example of a process that is implemented by thewireless mobile communication device 143 illustrated in FIG. 1. Theprocess illustrated in FIG. 2 may be implemented by a wireless mobilecommunication device that is different from the one illustrated inFIG. 1. Similarly, the wireless mobile communication device 143 mayimplement processes different from the one illustrated in FIG. 2.

FIG. 3 illustrates an example of a process that is implemented by thenetwork authentication system 121 illustrated in FIG. 1. The processillustrated in FIG. 3 may be implemented by a network authenticationsystem that is different from the one illustrated in FIG. 1. Similarly,the network authentication system 121 illustrated in FIG. 1 mayimplement processes different from the one illustrated in FIG. 3.

The wireless mobile communication device 143 may be of any type. Forexample, it may be a smart phone, laptop computer, PDA, netbookcomputer, or tablet computer. The wireless mobile communication device143 is configured to wirelessly communicate data over a computernetwork, such as a cellular communication network, the Internet, anyother type of network, or any combination of these.

The wireless mobile communication device 143 may instead be a networkdata communication device that is configured to communicate data over acomputer network, such as a cellular communication network, theInternet, any other type of network, or any combination of these, butthat may not be wireless and/or mobile. It may, for example, be adesktop computer.

A user of the wireless mobile communication device 143 may wish toobtain a service from a network application, such as a networkapplication 141 running on an application server 139 or a networkapplication 155 running on an application server 154.

The network applications 141 and 155 may provide network services of anytype. For example, the network applications may provide human resources,financial, time entry, customer support, point of sale, and/or othertype or types of services. The network applications may be enterpriseapplications that are intended to be accessed only by current members ofan enterprise, such a business or other type of organization.

To facilitate access to these services, a corresponding clientapplication is provided in the wireless mobile communication device 143,such as a client application 145 that is configured to request servicesfrom the network application 141 and a client application 149 that isconfigured to request services from the network application 155.

For security purposes, each client application 145 and 149 is configuredto provide authentication information in connection with each requestfor service that it makes. The authentication information may be of anytype. For example, the authentication information may be a session tokenthat evidences that the wireless mobile communication device 143 waspreviously authenticated using a process, such as one of the processesdiscussed below. There may be a different session token for eachapplication or, as in the examples below, a single session token for allof the applications.

When a user of the wireless mobile communication device 143 wishes torequest a service from a network application, such as the networkapplication 141 or 155, the user may start its corresponding clientapplication in the wireless mobile communication device 143, such as theclient application 145 or 149, respectively. In turn, the clientapplication requests a session token from a token manager 147, asreflected by a Client Application Requests Token step 201.

The token manager 147 may be hardware and/or software that is configuredto perform the functions described herein. In response to a request fora session token, the token manager 147 checks whether a valid sessiontoken is stored in the wireless mobile communication device 143, asreflected by a Valid Token Present? decision step 203. As part of thisprocess, the token manager 147 may be configured to determine not onlywhether a session token is present, but whether its age is less than apre-determined amount, such as less than five, ten, thirty, or sixtyminutes. A session token may also expire upon removal of power to thewireless mobile communication device 143 and/or after there is no use ofthe wireless mobile communication device 143 by a user for apredetermined period, such as five, ten, thirty, or sixty minutes.

If a valid token is not present, the token manager 147 requests variouspieces of security information from the user of the wireless mobilecommunication device 143, such as the name of the user, the user'spassword, the user's employee ID, and the user's employee PIN, asreflected by a Request User's Name, Password, Employee ID, and PIN step205. In other configurations, less, more, or different securityinformation may be requested.

A user interface 153 prompts the user for this information and receivesit in response. The user interface 153 includes devices configured tocommunicate with the user of the wireless mobile communication device143, such as a display (which may be a touch screen), a keyboard, apointing device, a microphone, and/or a loud speaker. The token manager147 may cause the user interface 153 to present one or more dialogueboxes to the user requesting this information.

The user then enters this information, The token manager 147 causes thisinformation to be sent to a network authentication system 121, alongwith device information stored in the device and identifying thewireless mobile communication device 143, such as its mobile devicenumber (MDN) and IP address, as reflected by a Send Name, Password,Employee ID, PIN, MDN, and IP Address step 207.

A network communication interface 123 within the network authenticationsystem 121 receives this information, as reflected by a Receive Name,Password, Employee ID, PIN, MDN, and IP Address step 301. The networkcommunication interface 123 is configured to send and receiveinformation over a computer network, such as a cellular communicationnetwork, the Internet, another type of network, or any combination ofthese. The network communication interface 123 includes hardware andoptionally software or firmware configured to facilitate thiscommunication. An example of a network communication interface 123 is anetwork interface card (NIC).

The received information is passed to a data processing system 125. Thedata processing system 125 includes hardware and optionally software orfirmware configured to perform the processing functions that aredescribed herein.

The data processing system 125 checks to determine whether the receiveduser name and password match a user name and a related password in auser-password database 105. To facilitate this, the data processingsystem 125 causes the network communication interface 123 to send thisinformation to a user-security database system 101 that contains theuser-password database 105.

The name and password are received by the user-password database system103 which checks to determine whether they match a name and relatedpassword in the user-password database 105. The results of this checkare sent back to the network authentication system 121, received by thenetwork communication interface 123, and given back to the dataprocessing system 125.

A corresponding process is employed by the data processing system 125 todetermine whether the name and employee ID match a name and relatedemployee ID in a user-employee ID database 109 managed by auser-employee ID database system 107, and whether the name and PIN matcha name and related PIN in a user-PIN database 113 managed by a user-PINdatabase system 111. The results of the responses from the user-passworddatabase system 103, the user-employee ID database system 107, and theuser-PIN database system 111 are analyzed by the data processing system125 to determine whether the password, the employee ID, and the PIN arecorrect, as reflected by a Password, Employee ID, and PIN Correct?decision step 303.

The network authentication system 121 may be part of a network system,such as a cellular communication network or the Internet. The networkauthentication system 121 may be part of a gateway 119 configured toenable the network authentication system 121 to communicate with systemsthat are part of different types of networks. As indicated herein, thegateway 119 may perform authentication thereby insuring that access toenterprise applications is limited to authorized devices and personnel.The gateway 119 may authenticate an employee's identification andpassword. The authentication information may be compared to databases ofsuch information, such as billing and active director databases. Thevarious pieces of information contained in these databases may beupdated by authorized personnel through appropriate interfaces, such asweb-based interfaces.

As indicated above, the security information that the user enters andthat is authenticated may be different from the specific types discussedabove. In such a situation, the databases that are checked and theirassociated database systems may be different to match. In addition, andas indicated above, at least some of the security information may besimultaneously supplied to at least some of the different securitysystems. This overlapping security information may be the same acrossall of the security systems (as the employee name is in the aboveexample) or may differ between different security systems. In an exampleof the latter, the employee name may be used in both the user-passworddatabase system 103 and the data processing system 125, while theemployee ID may be used in the data processing system 125 and theuser-PIN database system 111 (replacing the employee name in theuser-PIN database system 111).

If the password, employee ID, or PIN does not match, the data processingsystem 125 causes an error message to be sent by the networkcommunication interface 123 to the wireless mobile communication device143, as reflected by a Communicate Error step 311.

If all of the security information is correct, on the other hand, thedata processing system 125 checks to determine whether a network accountof the user of the data communication device 143 is active, as reflectedby a Network Active Account? decision step 305.

To facilitate this determination, the data processing system 125 causesthe network communication interface 123 to send a query to a networkaccount database system 127 containing a network account database 129.The query asks whether the account of the user is active. In response,the network account database system 127 checks the status of the user'saccount in the network account database 129 and sends an appropriateresponse.

The use of the word “active” embraces any type of status informationthat indicates that the user is authorized to request services from thenetwork applications, such as the network applications 141 and 155. Inconnection with enterprise applications, for example, a user's accountmay be designated “active” only for so long as the user remains a memberof the enterprise.

If the network account is active, the data processing system 125determines whether the device information that it received from thewireless mobile communication device 143 matches device information thatis contained in a MDN-IP database 133 operating under the management ofa MDN-IP database system 131, as reflected by a Device InformationMatch? decision step 307. During this step, the data processing system125 causes the network communication interface 123 to deliver the deviceinformation that was received from the wireless mobile communicationdevice 143—its MDN and IP address in this instance—to the MDN-IPdatabase system 131. The MDN-IP database system 131 determines whetherthe MDN and the IP address match an MDN and a related IP address in theMDN-IP database 133. The MDN-IP database system 131 sends the answerback to the network authentication system 121.

If the device information does not match, an error message iscommunicated to the wireless mobile communication device 143, asreflected by the Communicate Error step 311. Otherwise, the dataprocessing system 125 causes the network communication interface 123 tosend a request to an application—specific security database system 135to determine whether there are any additional, application—specificsecurity requirements that must additionally be met beforeauthenticating the wireless mobile communication device 143.

The application-specific security database 137 contains additionalsecurity requirements for each network application, such as for thenetwork applications 141 and 155. Recreational applications used byemployees, for example, may have reduced security requirements, whilebusiness applications (such as email) may have enhanced securityrequirements. Such business applications, for example, may only beinstalled and run from company-issued devices. For some networkapplications, there may not be any additional requirements. Someconfigurations may not include this application—specific security checkfor any network application.

To facilitate this checking when desired, the information that isoriginally communicated from the wireless mobile communication device143 to the network authentication system 121 may include anidentification of the particular network application from which aservice is desired. This identification information may also be sent bythe network communication interface 123 to the application—specificsecurity database system 135. In response, the application—specificsecurity database system 135 checks to see whether there are anyadditional security requirements for the identified application in anapplication—specific security database 137. If so, these are returned tothe network authentication system 121, following which the dataprocessing system 125 determines whether they are satisfied, asreflected by an Application—Specific Security Satisfied? decision step309. This may be accomplished, for example, by sending requests for theadditional security information to the wireless mobile communicationdevice 143 either at the time of the original authentication or later.If not, an error message is communicated to the wireless mobilecommunication device 143, as reflected by the Communicate Error step311. Different error messages may be generated, dependent on from whichstep (303, 305, 307, 309) failure occurs, and a particular one of theerror messages generated may be sent during the Communicate Error step311 to provide enhanced feedback to the user. Alternately, a singlegeneric error message may be generated and sent during the CommunicateError step 311 to reduce the information provided to the user foradditional security.

If all of the application—specific security requirements (if any) arealso satisfied, this indicates that the wireless mobile communicationdevice 143 should be authenticated. Specifically, it indicates that theuser information (i.e., a name in this example) and the securityinformation (i.e., a password, employee ID, and PIN in this example)match user information and related security information that is managedby the user-security database system 101; that the device information(i.e., its MDN and IP address in this example) match device informationin the MDN-IP database 133; and that the network account of the user isactive.

If and only if all of these security checks are successfully completed,the data processing system 125 causes the network communicationinterface 123 to request a session token from a token database system115, as reflected by a Request Token step 313. In response, the tokendatabase system 115 creates or obtains a token, stores it in a tokendatabase 117, and returns it to the network authentication system 121.This session token is received by the network authentication system 121,as reflected by a Received Token step 315. The data processing system125 then causes the network communication interface 123 to send thisreceived session token back to the wireless mobile communication device143, as reflected by a Send Token step 317.

The response that is received from the network authentication system 121by the wireless mobile communication device 143 is checked by the tokenmanager 147 to determine whether it includes a session token, asreflected by the Token Received? decision step 211.

If an error message is instead received, the error message iscommunicated to the user, as reflected by a Communicate Error step 213.If no response is received within a predetermined period, acommunication error message may be displayed advising the user to retrylater and/or to contact support.

On the other hand, if a session token is received, the token manager 147causes the session token to be stored as a token 151, as reflected by aStore Token step 217. The token manager 147 also returns the sessiontoken to the client application that requested the token, followingwhich the client application sends a request to the network applicationfor the desired service, together with the session token, as reflectedby a Client Application Sends Request To Network Application With Tokenstep 215.

The network application that receives the request for service and itsassociated token, such as the network application 141 or the networkapplication 155, sends a request to the token database system 115 todetermine whether the received token is valid. The token database system115 checks to determine if the session token is valid. This may involveverifying the presence of the token in the token database 117. It mayalso involve checking the age of the token. If the age is older than apre-determined amount, such older than five, ten, thirty or sixtyminutes. If the token is in the token database and 117 and if it is notolder than the pre-determined amount, the token database system 115 mayconclude that the token is valid. The token database system 115communicates the results of this check back to the network applicationthat requested it.

If the network application receives confirmation of the validity of thetoken from the token database system 115, it provides the requestedservice. Otherwise, it sends a response back to the wireless mobilecommunication device 143 indicating that authentication failed.

Each time a subsequent request for a token is received by the tokenmanager 147 from the same or a different client application, the tokenmanager again checks to determine whether a valid token is present, asreflected by the Valid Token Present? decision step 203. If it is, thetoken manager 147 returns the valid token to the requesting clientapplication. The requesting client application sends this token out tothe appropriate application server, along with a request for service, asreflected by the Client Application Sends Request To Network applicationWith Token step 215.

On the other hand, a valid token may not be present in connection with asubsequent request from a client application because the stored tokenhas expired because, for example, one of the reasons discussed above. Inthis case, the session manager may again go through the process ofacquiring a new session token, as illustrated in FIG. 2 and discussedabove.

FIG. 4 illustrates the various network applications, the wireless mobiledata communication device that communicates with the various networkapplications, and the related network security systems illustrated inFIG. 1, together with an example of a network authentication system thatauthenticates communications from the wireless mobile communicationdevice to the network applications.

The components illustrated in FIG. 4 that bear the same name and thesame number as corresponding components illustrated in FIG. 1 are of thesame composition and provide the same functions. For example, when aclient application requests a session token from the token manager 147and a valid token is not present, that token is provided only after thesecurity information, device information, and network account status areverified by the processes discussed above and illustrated in FIGS. 2 and3.

The remaining components that bear the same name but a different numberare also of the same composition and provide the same functions as theircorresponding component in FIG. 1, except for differences thatfacilitate a different routing of the requests for services.Specifically, each client application in FIG. 1 is configured to sendeach request for a service to the application server that is managingthe network application from which the services are desired. Thereceiving network application then verifies the validity of the sessiontoken that is included with the request by communicating with the tokendatabase system 115.

The configuration illustrated in FIG. 4, on the other hand, routes theserequest for service differently. Each client application in the wirelessmobile communication device 419 is configured to send each of itsrequests for service, including the session token, to the networkauthentication system 421, rather than to the application server runningthe target network application.

FIG. 5 illustrates a process that is implemented by the networkauthentication system 413 illustrated in FIG. 4 to validate each requestfor service that is made by a client application in the wireless mobilecommunication device 419 illustrated in FIG. 4.

The request for service and the associated session token is received bythe network communication interface 415, as reflected by a ReceiveRequest For Service and Associated Token step 501. This information ispassed to the data processing system 417 that determines whether thetoken is valid, as reflected by a Token Valid? decision step 503.

To make this determination, the data processing system 417 issues arequest to a token database system 401 to determine whether the sessiontoken is valid. The same steps that are discussed above in connectionwith the validation of tokens in FIG. 1 by the token database system 115may be followed here by the token database system 401, except that theresults of the query are sent back to the network authentication system413, rather than to the application server that is running the networkapplication to which the request for service is directed.

If the response from the token database system 401 indicates that thetoken is not valid, the data processing system 425 causes the networkcommunication interface 415 to notify the wireless mobile communicationdevice 419 of the error, as reflected by a Notify Network CommunicationDevice of Error step 411. On the other hand, if the response from thetoken database system 401 indicates that the token is valid, the dataprocessing system 425 causes the network communication interface 415 todeliver the request for service to the target network application, suchas to the application server 403 or the application server 407. Therequest for service need not be accompanied by the session token or anyother type of authentication information. Thus, the networkapplications, such as the network application 405 and the networkapplication 409, need not be configured with additional code toauthenticate any of the requests for service, nor are the associatedapplication servers 403, 407 connected in a network that can communicatewith the token database system 401. Rather, that authentication functionfor all of the network applications is now performed by a single system,namely the network authentication system 413. The network applicationsand the services that they provide may nevertheless be secured byinsuring that the application servers that manage the networkapplications, such as the applications severs 403 and 407, are part of ahighly secure network that is not directly in communication with thewireless mobile communication device 419.

Any response that the network application provides to the request forservice may be sent back to the network authentication system 413, asreflected by a Receive Response step 507. The data processing system 417causes the network communication interface 415 to send this responseback to the wireless mobile communication device 419, as reflected by aSend Response To Wireless Mobile Communication Device step 509. In otherconfigurations, responses from the network applications may be sent tothe wireless mobile communication device 419 directly, thus bypassingthe network authentication system 413.

The communications between the various systems and devices that havebeen described may take place over any type of network, such as over theinternet, a cellular communication network, a different type of network,or any combination of these. Some or all of the communications may ormay not be encrypted for additional security. Similarly, the token 151that is stored in the wireless mobile communication devices 143 and/or419 may or may not be encrypted.

As illustrated in FIGS. 1 and 4, the user-password database system 103,the user-employee ID database system 107, the user-PIN database system111, the network account database system 127, the MDN-IP database system131, the application-specific security database system 135, and thetoken database system 115 are separate from the network authenticationsystems 121 and 413, respectively. In other configurations, one or moreof these database systems may be contained within the networkauthentication system 121. The information in these databases may beupdated to reflect needed changes by delivering the updated informationto the respective database system(s) from any source or from only one ormore restricted sources.

Unless otherwise indicated, the gateways, the network authenticationsystems, the database systems, and the application servers that havebeen discussed herein are each implemented with one or more computersystems configured to perform the functions that have been describedherein for the component. Each computer system includes one or moreprocessors, memory devices (e.g., random access memories (RAMs),read-only memories (ROMs), and/or programmable read only memories(PROMS)), tangible storage devices (e.g., hard disk drives, CD/DVDdrives, and/or flash memories), system buses, video processingcomponents, network communication components, input/output ports, and/oruser interface devices (e.g., keyboards, pointing devices, displays,microphones, sound reproduction systems, and/or touch screens).

Each computer system may include software (e.g., one or more operatingsystems, device drivers, application programs, and/or communicationprograms). When software is included and in connection with a softwareversion of the token manager 147, the software includes programminginstructions and may include associated data and libraries. Whenincluded, the programming instructions are configured to implement oneor more algorithms that implement one more of the functions of thecomputer system, as recited herein. Each function that is performed byan algorithm also constitutes a description of the algorithm. Thesoftware may be stored on one or more non-transitory, tangible storagedevices, such as one or more hard disk drives, CDs, DVDs, and/or flashmemories. The software may be in source code and/or object code format.Associated data may be stored in any type of volatile and/ornon-volatile memory.

Some of the various components that have been described herein may beimplement using existing technology and systems. For example, thenetwork authentication system 423 may be implemented using thehardware/software appliance from IBM called Data Power; the MDN-IPdatabase system may be implemented by an AAA server in a cellulartelephone network; the network account database systems may beimplemented by a Billing System in a cellular telephone network; theuser-employee ID database system and the user-PIN database system mayboth be implemented with an Identify Manager in a cellular telephonenetwork; and the user-password database system may be implemented by anAuthentication Manager in a cellular telephone network. One or more ofthe various database systems may also be managed by a softwareapplication called Site Minder.

The components, steps, features, objects, benefits and advantages thathave been discussed are merely illustrative. None of them, nor thediscussions relating to them, are intended to limit the scope ofprotection in any way. Numerous other embodiments are also contemplated.These include embodiments that have fewer, additional, and/or differentcomponents, steps, features, objects, benefits and advantages. Thesealso include embodiments in which the components and/or steps arearranged and/or ordered differently.

For example, the various types of authentication that have beendescribed could be used in connection with web-based applicationsrunning on a browser, such as Internet Explorer or Firefox. Also, thelevel of security that is provided may vary depending upon theparticular network application that is accessed and/or the person ordevice that is accessing it.

Unless otherwise stated, all measurements, values, ratings, positions,magnitudes, sizes, and other specifications that are set forth in thisspecification, including in the claims that follow, are approximate, notexact. They are intended to have a reasonable range that is consistentwith the functions to which they relate and with what is customary inthe art to which they pertain.

All articles, patents, patent applications, and other publications thathave been cited in this disclosure are incorporated herein by reference.

The phrase “means for” when used in a claim is intended to and should beinterpreted to embrace the corresponding structures and materials thathave been described and their equivalents. Similarly, the phrase “stepfor” when used in a claim is intended to and should be interpreted toembrace the corresponding acts that have been described and theirequivalents. The absence of these phrases in a claim mean that the claimis not intended to and should not be interpreted to be limited to any ofthe corresponding structures, materials, or acts or to theirequivalents.

The scope of protection is limited solely by the claims that now follow.That scope is intended and should be interpreted to be as broad as isconsistent with the ordinary meaning of the language that is used in theclaims when interpreted in light of this specification and theprosecution history that follows and to encompass all structural andfunctional equivalents. Notwithstanding, none of the claims are intendedto embrace subject matter that fails to satisfy the requirement ofSections 101, 102, or 103 of the Patent Act, nor should they beinterpreted in such a way. Any unintended embracement of such subjectmatter is hereby disclaimed.

Except as stated immediately above, nothing that has been stated orillustrated is intended or should be interpreted to cause a dedicationof any component, step, feature, object, benefit, advantage, orequivalent to the public, regardless of whether it is or is not recitedin the claims.

The terms and expressions used herein have the ordinary meaning accordedto such terms and expressions in their respective areas, except wherespecific meanings have been set forth. Relational terms such as firstand second and the like may be used solely to distinguish one entity oraction from another, without necessarily requiring or implying anyactual relationship or order between them. The terms “comprises,”“comprising,” and any other variation thereof when used in connectionwith a list of elements in the specification or claims are intended toindicate that the list is not exclusive and that other elements may beincluded. Similarly, an element proceeded by “a” or “an” does not,without further constraints, preclude the existence of additionalelements of the identical type.

The Abstract is provided to help the reader quickly ascertain the natureof the technical disclosure. It is submitted with the understanding thatit will not be used to interpret or limit the scope or meaning of theclaims. In addition, various features in the foregoing DetailedDescription are grouped together in various embodiments to streamlinethe disclosure. This method of disclosure is not to be interpreted asrequiring that the claimed embodiments require more features than areexpressly recited in each claim. Rather, as the following claimsreflect, inventive subject matter lies in less than all features of asingle disclosed embodiment. Thus, the following claims are herebyincorporated into the Detailed Description, with each claim standing onits own as separately claimed subject matter.

The invention claimed is:
 1. A network authentication system for authenticating a network data communication device being used by a user having a network account, the system comprising: a network communication interface configured to electronically receive from the network data communication device: user information identifying the user, the user information including a user name; security information that the user has entered into the network data communication device, the security information including at least two separate fields of information, wherein one of the fields of information is a password and another of the fields of information is an employee ID; and device information identifying the network data communication device; and a data processing system configured to electronically authenticate the network data communication device if and only if: the user information and the security information match user information and related security information in a user-security information database, the user-security information database including a user-password database containing a password for each of several user names and a user-employee ID database containing an employee ID for each of several user names; the device information matches device information in a device information database; and the network account of the user is indicated as being active in a network account database.
 2. The network authentication system of claim 1 wherein: the data processing system and the network communication interface are configured to communicate with: a user-password database system that has access to the user-password database and that is separate from the network authentication system to determine whether the user information and the password match user information and a related password in the user-password information database; and a user-employee ID database system that has access to the user-employee database and that is separate from the network authentication system and the user-password database system to determine whether the user information and the employee ID match user information and a related employee ID in the user-employee ID information database.
 3. The network authentication system of claim 1 wherein the security information further includes at least one other separate field of information, the at least one other separate field of information is a PIN.
 4. The network authentication system of claim 3 wherein: the user-security information database further includes: a user-PIN database containing a PIN for each of several user names; and the data processing system and the network communication interface are further configured to communicate with: a user-PIN database system that has access to the user-PIN database and that is separate from the network authentication system, the user-employee ID database system, and the user-password database system, to determine whether the user information and the PIN match user information and a related PIN in the user-employee ID information database.
 5. The network authentication system of claim 1 wherein the network data communication device is a wireless mobile communication device.
 6. The network authentication system of claim 5 wherein: the wireless mobile communication device has a mobile device number (MDN) and an IP address; the device information includes the MDN and the IP address; and the processing system is configured to determine whether the MDN and the IP address match an MDN and a related IP address in the device information database.
 7. The network authentication system of claim 1 wherein: the network communication interface is configured to electronically send a session token to the network data communication device; and the processing system is configured to cause the network communication interface to electronically send the session token to the network data communication device if and only if the data processing system electronically authenticates the network data communication device.
 8. The network authentication system of claim 7 wherein the network communication interface and the processing systems are configured to electronically request and receive the session token from a token database system that is separate from the network authentication system.
 9. The network authentication system of claim 7 wherein the same session token is configured to provide security access to multiple applications.
 10. The network authentication system of claim 1 wherein the network authentication system is part of a gateway between the network data communication device and the user-security information database, the device information database, and the network account database.
 11. The network authentication system of claim 1: further comprising a network communication interface configured to: electronically receive requests for application services from the network data communication device and electronically send requests for the services to the applications on behalf of the network data communication device, wherein the data processing system is further configured to electronically authenticate each received request; and cause the network communication interface to send each request for the service indicated by the received request on behalf of the network data communication device to the application if and only if the authentication is successful.
 12. The network authentication system of claim 11 wherein the data processing system is configured to determine whether there are any additional application-specific security requirements in connection with the application to which each received request is directed and, if so, to verify that such application-specific security requirements are met in addition to authenticating each received request.
 13. Non-transitory, tangible, computer-readable storage media containing a program of instructions configured to cause a network authentication system running the program of instructions to authenticate a wireless mobile communication device being used by a user having a network account by: electronically receiving from the wireless mobile communication device: user information identifying the user, the user information including a user name; security information that the user has entered into the wireless mobile communication device, the security information including at least two separate fields of information, wherein one of the fields of information is a password and another of the fields of information is an employee ID; and device information identifying the wireless mobile communication device; and electronically authenticating the wireless mobile communication device if and only if: the user information and the security information match user information and related security information in a user-security information database, the user-security information database including a user-password database containing a password for each of several user names and a user-employee ID database containing an employee ID for each of several user names; the device information matches device information in a device information database; and the network account of the user is indicated as being active in a network account database.
 14. The storage media of claim 13 wherein the security information includes at least one other separate field of information, wherein the at least one other field of information is a PIN.
 15. The storage media of claim 14 wherein: the user-security information database further includes: a user-PIN database containing a PIN for each of several user names; and the program of instructions is configured to cause the network authentication system running the program of instructions to communicate with: a user-password database system that has access to the user-password database and that is separate from the network authentication system to determine whether the user information and the password match user information and a related password in the user-password information database; a user-employee ID database system that has access to the user-employee database and that is separate from the network authentication system and the user-password database system to determine whether the user information and the employee ID match user information and a related employee ID in the user-employee ID information database; and a user-PIN database system that has access to the user-PIN database and that is separate from the network authentication system, the user-employee ID database system, and the user-password database system, to determine whether the user information and the PIN match user information and a related PIN in the user-employee ID information database.
 16. The storage media of claim 13 wherein the program of instructions is configured to cause the network authentication system running the program of instructions to electronically send a session token to the wireless mobile communication device if and only if the network data communication device is authenticated.
 17. The storage media of claim 16 wherein the program of instructions is configured to cause the network authentication system running the program of instructions to electronically request and receive the session token from a token database system that is separate from the network authentication system.
 18. The storage media of claim 17 wherein the session token is configured to provide security access to multiple applications.
 19. The storage media of claim 13 wherein the network authentication system is part of a gateway system between the wireless mobile communication device and the user-security information database, the device information database, and the network account database.
 20. The network authentication system of claim 1, wherein an active status of the network account of the user indicated in the network account database indicates that the user is authorized to request services from the network applications as a member of an enterprise. 